... Approvals:ISO9001,ISO14001 Color : select Extension Spring/ Stainless Steel Wholesale Pressure spring Precision spring metal springwire diametervariousmaterialcarbon steel,alloy spring ... toys, remote control, calculator, charger, cell phone, battery boxes, telephones and other industries.5.MOQ:1000pcs6.Packing:Inner plastic ... market Top-quality compression spring with personal design wholesale